Tamper



cyJAcKsoN.

TAMPER.

APPLICATION FILED DEC.20, i919.

1,361,261, Patented Deo. 7,1920.

, @fvwm/toc 'Corwl/ Jackson @wi/hymen@ atto/zwang@ UNITED STATES Pg'rENToFFicE'.

CORWILL JACKSON, F KALAMAZOO, MICHIGAN.

TAMPER.

r To all lwhom t may concern:

' effective 'in tamping Be it known that I, CoR\viLL J. AoKsoN, acitizen of the United States, residing at the city and county ofKalamazoo, State of Michigan, have invented certain new and of whichuseful Improvements in Tampers, the following is a specification.

This invention relates to improvements in tampers.

My improvements are especially designed by me 'for embodiment in tietampers and the embodiment illustrated is especially adapted for thatpurpose. My improvements are, however, readily adapted for and ofadvantage for use in other relations.

The main objects of this invention are:

First, to provide an improved tamper which is of large capacity in thatit enables the perfomance of a large amount of work with comparativelylittle effort on the part of the user.

Second, to provide which is very durable in use.`

Third, to provide an improved tamper for use in tamping ties the earthunder the ties providing a bed which is not likely to settle or haveuntamped portions in which the material is easily loosened by means ofwater or the like.

Fourth, to provide an improved motor driven tamper in which the partsare compact in structure and arrangement and not likely to becomeinoperative or get out of repair in use.

Further objects, and objects relating to structural details, willdefinitely appear from the detailed descriptionvto follow.

I accomplish the objects of my invention by thedevices and meansdescribed in the following specification. The invention is clearlydefined and pointed out in the claims.

A structure which is a preferred embodiment of my invention is clearlyillustrated in the accompanying drawing forming a part of thisspecification, in which.:

Figure I is a side view of a tamper embodying the features of myinvention, the.

tamping barbeing broken away.

Fig. II is a detail view mainly in section gn aIline corresponding toline 2-2 'of i Fig. III is a central vertical section on a linecorresponding to line 3-3 of Fig. II, the tamping bar being shown infull lines.

Fig. IV is a detail view on a line corre- Specification of LettersPatent.

an improved tamperl andthe like which is Patented Dec. 7, 1920.

Application filed December 20, 1919. Serial No. 346,210.

sponding to line 4 4 .of Fig. IfI, showing the arrangement of theunbalancing weight on the shaft.

FignV is a plan view of the tamping bar, a portion-being broken away;

Fig. VI is a vertical section through-the tamping bar or tool holder ona line corre-- sponding to line 6 6 of Fig. III.

In the drawing similar reference characters refer to similar partsthroughout the several views, and the sectional views are taken lookingin the direction of the little arrows at the ends of the section lines.

Referringto the drawing: i

I provide a casing 1 on which the motor designated Generally by thenumeral, is mounted. 'Flic armature 3 of the motor is mounted upon theshaft 4 having bearings 5 in the ends of the casing. This shaft isprovided with a pair of unbalancing weights 6 disposed at the endsthereof and near its bearings. The casing is preferably cylindrical inform, as illustrated. On its under side, the casing is provided with atangentially disposed tool or tamping bar holder 7 having a socket 8 forthe tamping bar 9. The tool holder is disposed centrally' of the casing.

The tool or tamping bar Iis provided with so l opposed notches orrecesses 10 engaged by the staple-like retainer 11 passed through theholder and held'therein by means of the cotter pin 12; This retains .thetamping bar for limited, reciprocating movement within the holder sothat` vibrations ,of the casing are imparted thereto as blows, thecasing constituting an impact member for the tool or tamping bar.

The casing is provided with a handle 13 havin spring portions 14therein, the handle being of bail-like form, the arms 15 of the handlebeing connected to the ends of the casing at 16. The handle is providedwith a second gri or hand-piece 17.

With the arts thus arranged, the rotation of the s aft 4 vibrates thecasing and this vibration is imparted to the tool or tamiping `bar inthe holder providing 'a highly efiicient implement for the tamping ofties and the like, the tamper enabling the performance of av largeamount of work with little effort on the part of the operator and thetamping being effected in a superior manner, that is, the earth may berapidly f ll have illustrated and described my improvements in twoembodiments which l consider very satisfactory. l have not attempted toillustrate or describe various other modifications or embodiments whichl' I contemplate as l believe the disclosure made l claim as new anddesire to secure by liet.

ters Patent, is:

l. ln a structure of the class described, the combination of a casinghaving a tan-- gentiallydisposed tool holder on its under side, a shaftprovided with bearings in the ends of said casing and having unbalancingweights at its ends, a driving motor for said shaft disposed centrallywithin said casing between. said unbalancing weights, a handlecomprising spring members connected to the ends of said casing, and atool having a limited reciprocating movement in said holder.

2. lin a structure of the class described, the combination of a casing,a shaft provided with bearings in the ends of said casing and havingunbalancing weights at its ends, a driving motor for said shaft disposedcentrally within said casing` between said unbalancing weights, a handlecomprisingv spring members connected to the ends of said casing, and atool mounted on the under side of said casing and centrally thereof.

3. in a structure of the class described, the combination of a casinghaving a tangentially dispesed tool holder on its under side, .a shafthaving an unbalancing member thereon provided with bearings in the endsof said casing, a driving means for said shaft, a resilient handleconnected to the ends of said casing, and a tool having a limitedreciprocating movement in said holder. v

1i. ln a structure of the class described, the combination of a casing,a shaft having an unbalancing member thereon provided with bearings onsaid casing, a driving means for said shaft, a resilient handleconnected to the ends of said casing, and a tool mounted on said casingfor limited reciprocating movement whereby it receives the impact of thecasing.

5. In a tamper, the combination of a casing, a shaft provided withbearings in the ends of said casing and having unbalancing isaiasi.

weights at its ends, a driving motor for said shaft disposed centrallywithin said casing between said unbalancing weights, a handle comprisingspring members connected to the ends of said casing, and a tamping bartangentially mounted on said casing.

6. in a tamper, the combination of a shaft having an unbalancing memberthereon, a

driving motor therefor, a casing, a tool holder on said casing, a toolhaving a limited reciprocating movement in said tool holder whereby itreceives the impact of the casing, and a handle having resilientconnection to said casing.

7. in a tamper, the combination of a shaft having an unbalancing memberthereon, a driving motor therefor, a casing, a tool holder on saidcasing, a tamping bar having a limited reciprocating movement in saidtool holder whereby it receives the impact of the casing, and aresilient handle.

8. in a tamper, the combination of a shaft having an unbalancing memberthereon, a driving means therefor, a casing, a tamping bar mounted onsaid casing for limited movement thereon and to receive the impact ofthe vibrations thereof, anda handle having a resilient connection tosaid casing.

9. fn a tamper, the combination of a shaft having an unbalancing memberthereon, a driving means therefor, a casing, a tamp ing bar mounted onsaid casing for limited movement thereon and to receive lthe impact ofthe vibrations thereof. l

10. ln a structure of the class described7 the combination of a shafthaving an unbalancing means, a casing having bearings for said shaft, atool mounted on said casing for limited movement thereonand sov that: 1treceives the impact of the-vibrations of the casing, and a handle havinga resilient connection to said casing.

1l. ln a structure of the class described, the combination of a motor, acasing, vibrating means for said casing, atool loosely mounted on thecasing to receive the impact of the vibrations thereof, and a handlehaving resilient connections to said casing.

n witness whereof, have hereuntol set my hand and seal in the presenceof two witnesses.

CORVViLlL JACKSON. [L s] lWitnesses:

@kann B.` THoMrsoN, MARGARET L. GLASGOW..

